Chaetodonauriga

One of the best-known butterflies, the auriga is characterized by the adult's filamentous extension of the dorsal fin. Active and not prone to shyness, it is easy to acclimatize. Feed it with living or frozen food, backed up by vegetable material if there are no algae to graze on in the decor. Size: 14 cm.

• Chaetodon lunula

Easy to acclimatize, the raccoon butterfly fish accepts food of animal origin backed up with vegetable material. The black patches on the young (dorsal area and rear) get bigger in adults once they have reached 7 or 8 cm. Size: 20 cm.

Chaetodoncapistratus

Acclimatizing a four-eye butterfly fish can be complicated, as it normally feeds on the tentacles of anemones and corals, but it soon becomes easy to keep. It is one of the rare species emanating from the tropical Atlantic, where it is common. Size: 10 cm.

Chaetodon miliaris

In its natural habitat, the lemon butterfly fish feeds on the soft parts of corals. In captivity, it has to grow accustomed to small, live prey, then frozen ones (brine shrimps, tubifex worms).

Size: 13 cm

• Chaetodon collare

The Pakistani butterfly fish will tolerate fish of its own species. Undemanding as regards diet, it accepts both frozen and live food and also feeds off algae in the decor. It has a reputation for being easy to keep. Size: 17 cm.

Chaetodon melanotus

There are few differences between the juveniles and adults of the black back butterfly fish. This somewhat nervous species appreciates brine shrimps, worms, and small pieces of mussel, as well as small anemones of the Aiptasia genus that sometimes "spontaneously"appear in marine aquariums. Size: 15-17 cm.

• Chaetodon meyeri

Rarely found in the aquarium trade, Meyer's butterfly fish proves very difficult to acclimatize as it feeds on coral. Even if it does accept substitute food, it is not unusual for it to die in captivity. Size: 15 cm.

Chaetodonfasciatus

The Red Sea butterfly fish is considered very difficult to acclimatize, because it feeds on anemone tentacles and the soft parts of coral. This species can be confused with C. lunula. Size: 15-17 cm. •

Chaetodonpunctatofasciatus

Placid, little prone to aggression, but a vigorous swimmer, the dot-dash butterfly fish can accept artificial food, after first adjusting to small animal prey. It is considered difficult to keep. Size: 10 cm.

Chelmonrostratus

~ 1 ngation of the "beak" of the }erband butterfly fish (more inounced than that of the haetodon genus) has evolved i enable it to pick out food om crevices in the coral. This obust species swims slowly, sxcept when it is alarmed. It feeds on small, live prey, notably crustaceans. Size: 17 cm.

Chaetodon quadrimaculatus

In its natural habitat, the four-spot butterfly fish feeds on corals or small anemones. It does accept brine shrimps and frozen food in captivity, making it easier to keep. Size: 15 cm.

Chaetodonsemilarvatus

The highly active masked butterfly fish searches out small prey near the substrate or in the algae, but it also swims in open water. Its maintenance can pose problems, as it is

Chaetodon quadrimaculatus

In its natural habitat, the four-spot butterfly fish feeds on corals or small anemones. It does accept brine shrimps and frozen food in captivity, making it easier to keep. Size: 15 cm.

sometimes considered to be delicate. Size: 20 cm.

BUTTERFLY FISH COLORING

The coloring of adults is often slightly different from that of juveniles (size less than 5 cm), the black patch on the rear of the dorsal fin sometimes disappearing in adults. It seems to act as a false eye (the real one being surrounded - and hidden - by a band or black patch) to deceive an enemy and surprise it by fleeing "in reverse." However, this theory has yet to be proven. Once the fish are fully grown, the juvenile bands can fade or disappear completely, although some, in contrast, can get bigger.

Chaetodon ocellatus

The placid spot-fin butterfly fish feeds on small live and frozen prey. It seems to accept the presence of other specimens from the same species. Size: 11-12 cm.

• Chaetodon striatus

The banded butterfly fish, like the C. capistratus and the C ocellatus, is native to the tropical Atlantic, while the other butterflies come from the Indo-Pacific region. It does not pose any problems once it has become used to small food items (crustaceans and anemones of the Aiptasia genus). Size: 15 cm.

Chaetodonvagabundus

The color of the young vagabond butterfly fish differs from that of adults. This species is not given to shyness and is easy to feed, with live prey and vegetable supplements. Its acclimatization is relatively smooth. Size: 1 5 cm.

Forcipigerflavissimus

This is an easy species to acclimatize if it has not suffered too much during its importation.

Not inclined to be aggressive (except against members of its own species), the longnose butterfly likes to have some hiding places. Its diet comprises mussels, tubifex worms, or fish flesh. Size: 15 cm. •

Heniochus diphreutes

The first spokes of the fins of the Heniochius genus are elongated to a greater or lesser extent, depending on the species. The pennant butterfly fish is peaceful and easy to keep in a spacious tank. Small, live prey is its favorite food. Size: 20-25 cm.

Heniochusintermedius

The background coloring of the black and white butterfly fish can vary from white to yellow, except on the upper part of the body. At night, when it can swim as actively as by day, it gets darker. Size: 15 cm. •

• Heniochus varius

The brown butterfly is distinguished by a protuberance between the eye and the base of the dorsal fin, and by small tentacles above the eyes, which are more developed in the adult male. Size: 20 cm.

MARINE FISH

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